Gas generator and burner.



H. B. HEMPHILL.

GAS GENERATOR AND BURNER.

APPLICATION FILED JAN. 21, 1915 Patented July 25, 1916.

Henry B. bmp/v I witness w H. B. HEMPHILL,

GAS GENERATOR AND BURNER.

APPLICATION FILED JAN. 27,1915.

Patented July 25, 1916. 2 SHEETS-SHEET 2.

lnihlrssrs Altunugs HENRY B. HEMPHI-LL, 0F ELDORADO, ILLINOIS.

GAS GENERATOR AND BURNER.

Specification of Letters Patent.

- Ia'tentetl July 2 5, 1916.

Application filed January 27, 1915. Serial No. 4,662.

To all whom it may concern:

Be it known that I, HENRY B. HEMPHILL, a citizen of the United States, residing at Eldorado, in the county of Saline and Stateof Illinois,'have invented certain neu andruseful Improvements in Gas Generators and Burners, of which'the following is a specification. v v ,i 1

This invention relates to improvements in petroleum gas generators and burners especially designed for steam-boiler furnaces.

The invention has for its object particularly to produce a white flame of intense heating-action.

A further object is to carry out that end in a simple, economical and effective manner.

The invention therefore consists, of certain instrumentalities and features of construction, substantially 'as hereinafter fully disclosed and defined by the appended claims.

I11 the accompanying drawings is illustrated the preferred embodiment of my invention wherein it will be understood that various changes and modifications may be made as to the detailed construction and arrangement of parts without departing from the scope of the claims, and in which draw- 1ngs:

Figure 1 is a side elevation of my invention with the steam super-heater shown in section, and one wall of the retort or generator removed. Fig. 2 is a perspective view of the retort or generator. Fig. 3 is a vertical section thereof taken on the lines 33 of Fig. 2. Figs. 4 and 5 are sectional views of the injector and the viewing or examination tube of the combustion chamber, respectively.

In carrying out my invention, I provide a suitable retort or generator having a removable wall A and comprising the communicating chambers 2 and 3, of which chambers 2 is the generating chamber and 3 the mixing chamber, the generating chamber being rela tively elongated with its forward wall curved or concaved to aid the return or reflex movementof the oil and steam mixtures as it is injected thereinto, as it will presently more fully appear. The mixing chamber is formed at its lower half with the inwardly inclined or converging side walls B, leaving a relatively narrow or restricted passage 4 between the mixing chamber and retort or generator. A steam super-heater-o-is arranged or mounted on top of the retort and communicates with the mixing chamber through the nozzle or neck 6 depending from the steam supenheater and extending through thetop of the retort into the mix-.

ing chamber. The front wall of the mixing chamber is provided with a discharge nozzle 7 which has -a screw threaded connection therewith and extends into the combustion chamber of the furnace and discharges the resultant mixture of dry steam and gas ,thereinto.

An injector 9 is positioned in the front wall of the furnace so as to project into the generating chamber 2 and deliver or inject petroleum or oil thereinto by the actionof the primary steam supply-pipe 11 and the steam superheater 5 to supply unsaturated steam to the latter. In order to control the steam-supply to the injector, or wholly cut off such supply, the pipe 11 or rather an arm thereof, is equipped'with a valve 16.

In starting. the operation, the valves 13 and 16 are opened successively, steam thus being-admitted to the, injector, the valve, 12 is next opened admitting oil or petroleum to the latter, these vvalves being requisitely manipulated until the proper mixture of the oil and steam is secured. This having been efiected: and as soon thereafter as it may be determined that a flame may be maintained and yet a less portion of the oil may be used,.then the valve 15 is opened and a.

quantity of steam admitted to the steam super-heater 5, whereby the resultant superheated steam passes from the latter chamber into the steam and oil mixture in the mixing chamber 3 and has the effect to attenuate the mixture, resulting in producing a white flame and evolving greaterheat. The steam is suppliedin as great a quantity as possible and the flame held at 7,, itbeing understood that the oil and steammix in the chambers 2 and 3 in producing the gas.

A viewing or sight tube 17 with its outer end equipped with a transparent member 18 preferably mica, s suitably positioned in the forward wall of the furnace and in the top portion of the generator casing 1 to facilitate observation of the combustion or gas-burning operation.

I claim:

1. A device of the class specified comprising a retort having communicating generating and mixing chambers, an injector extending into the generating chamber, a superposed steam super-heater communicating with the mixing chamber of the retort, valve equipped oil and steam supply pipes communicating with the injector and a steam supply pipe for the steam superheater.

2. A device of the class specified comprising a retort having communicating generating and mixing chambers, an injector extending into the generating chamber, a superposed steam super-heater communicating with the mixing chamber of the retort, valve equipped oil and steam supply pipes communicating with the injector and a steam supply pipe for the steam superheater, and a discharge nozzle extending through the forward wall of the mixing chamber of the retort into the combustion chamber of the furnace.

3. In a gas generator and burner for steam boiler furnaces, a retort or generator comprising lower and upper communicating generating and mixing chambers, respectively, a steam super-heater mounted on top of the retort and communicating with the mixing chamber thereof, and an injector extending into the generating chamber of the retort, oil and steam supply pipes for the injector, a steam pipe leading to the steam super-heater, and a discharge noz zle extending through the forward wall of the mixing chamber into the combustion chamber of the furnace.

4-. In a gas generator and burner for steam boiler furnaces, a retort arranged in the combustion chamber of the furnace and comprising an elongated generating chamber with a curved or concaved forward wall and an upper mixing chamber communicating with the generating chamber, a steam super-heater arranged on top of the retort and communicating with the mixing chamber thereof, an injector extending through the rear wall of the retort into the generating chamber thereof, oil and steam supply pipes communicating with the injector, a steam pipe leading to the steam super-heater, valves for controlling the supply of oil and steam and a discharge nozzle extending through the forward wall of the mixing chamber of the retort into the combustion chamber of the furnace.

5. In a gas generator and burner for steam boiler furnaces, a retort arranged in the combustion chamber of the furnace and comprising an elongated genera-ting chamber with a curved or concaved forward wall and an upper mixing chamber communicating with the generating chamber, a steam super-heater arranged on top of the retort and communicating with the mixing chamber thereof, an injector extending through the rear wall of the retort into the generating chamber thereof, oil and steam supply pipes communicating with the injector, a steam pipe leading to the steam super-heater, valves for controlling the supply of oil and steam and a discharge nozzle extending through the forward wall. of the mixing chamber of the retort into the combustion chamber of the furnace, the lower half of the mixing chamber being formed with inwardly inclined or converging walls, leaving a relatively narrow or re stricted passage between the mixing chamber and generating chamber of the retort.

In testimony whereof I aflix my signature in presence of two witnesses.

R. GARNAI-IAN, J. S; BRANNON.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C. 

